Anterior interventricular branch of left coronary artery
- Anterior interventricular branch of left coronary artery
Infobox Artery
Name = PAGENAME
Latin = ramus interventricularis anterior arteriae coronariae sinistrae
GraySubject = 142
GrayPage = 547
Caption = Sternocostal surface of heart. (Anterior descending branch labeled at upper right.)
Caption2 = The arch of the aorta, and its branches.
BranchFrom = left coronary artery
BranchTo = septals, diagonals
Vein =
Supplies = anterolateral myocardium, apex, interventricular septum, 45-55% of the left ventricle (LV)
MeshName =
MeshNumber =
DorlandsPre = r_02
DorlandsSuf = 12690388
The "LAD", or left anterior descending artery (or anterior interventricular branch of the left coronary artery, or anterior descending branch) is an artery of the heart.
Course
It passes at first behind the pulmonary artery and then comes forward between that vessel and the left auricula to reach the anterior interventricular sulcus, along which it descends to the incisura apicis cordis.
In 78% of cases, it reaches the apex of the heart.
upply
It supplies the anterolateral myocardium, apex, and interventricular septum. The LAD typically supplies 45-55% of the left ventricle (LV).
Branches
The LAD gives off two types of branches: "septals" and "diagonals".
* Septals originate from the LAD at 90 degrees to the surface of the heart, perforating and supplying the interventricular septum.
* Diagonals run along the surface of the heart and supply the lateral wall of the left ventricle and the anterolateral papillary muscle.
=Additional
External links
*
* - "Heart: The Left Coronary Artery and its Branches"
* - "Anterior view of the heart."
*
Wikimedia Foundation.
2010.
Look at other dictionaries:
Circumflex branch of left coronary artery — Artery: Circumflex branch of left coronary artery Base and diaphragmatic surface of heart. (Circumflex branch not visible, but would be near the coronary sinus.) … Wikipedia
Right marginal branch of right coronary artery — Artery: Right marginal branch of right coronary artery Sternocostal surface of heart. (Right marginal artery not labeled, but is visible at bottom left.) … Wikipedia
Left marginal artery — Artery: Left marginal artery Base and diaphragmatic surface of heart. (Left marginal artery not visible, but would be near center left.) … Wikipedia
Interventricular septum — Section of the heart showing the ventricular septum. Interior of dorsal half … Wikipedia
coronary bypass — n a surgical bypass operation performed to shunt blood around an obstruction in a coronary artery that usu. involves grafting one end of a segment of vein (as of the saphenous vein) removed from another part of the body into the aorta and the… … Medical dictionary
Left ventricle — Infobox Anatomy Name = Left ventricle Latin = ventriculus sinister cordis GraySubject = 138 GrayPage = 534 Caption = The heart, with cutaways, as viewed from the left side. Caption2 = Left ventricle at lower left, cutaway shows some internal… … Wikipedia
branch — An offshoot; in anatomy, one of the primary divisions of a nerve or blood vessel. A b.. See ramus, artery, nerve, vein. SYN: ramus (1) [TA]. accessory meningeal b. SYN: pterygomeningeal artery … Medical dictionary
Artery — A vessel that carries blood that is high in oxygen content away from the heart to the farthest reaches of the body. Since blood in arteries is usually full of oxygen, the hemoglobin in the red blood cells is oxygenated. The resultant form of… … Medical dictionary
ramus interventricularis anterior arteriae coronariae sinistrae — [TA] anterior interventricular branch of left coronary artery: the branch of the left coronary artery that runs to the apex of the heart in the anterior interventricular sulcus, supplying the ventricles and most of the interventricular septum.… … Medical dictionary
Right coronary artery — Artery: Right coronary artery Sternocostal surface of heart. (Right coronary artery visible at left.) Latin arteria coronaria dextra Gray s … Wikipedia
